Hi, I connected my PTP4L to sync to a PTP master and I am seeing very high delay values continuously. PTP offset and freq comes down to good values. (See PTP4L slave logs below)
Because of this, we are seeing approx 18.5 seconds of offset on PTP4L slave. NOTE: The time on PTP master is good and it is synchronized. Could anyone suggest help on what could be the root cause for this issue? *PTP4L command on Slave side:* ptp4l -i eno1 -m -s *PTP4L Slave Logs:* Jun 7 20:32:00 pts1 bash: ptp4l[26461512.426]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE Jun 7 20:32:01 pts1 bash: ptp4l[26461513.474]: port 1: new foreign master 64fb81.fffe.2015f7-1 Jun 7 20:32:03 pts1 bash: ptp4l[26461515.599]: selected best master clock 64fb81.fffe.2015f7 Jun 7 20:32:03 pts1 bash: ptp4l[26461515.599]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE Jun 7 20:32:06 pts1 bash: ptp4l[26461518.786]: master offset -14132350430 s0 freq -62499998 path delay -18514526405 Jun 7 20:32:07 pts1 bash: ptp4l[26461519.849]: master offset -14068535018 s1 freq +1315733 path delay -18515837820 Jun 7 20:32:08 pts1 bash: ptp4l[26461520.912]: master offset -1284495 s2 freq +31238 path delay -18515837820 Jun 7 20:32:08 pts1 bash: ptp4l[26461520.912]: port 1: UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED Jun 7 20:32:09 pts1 bash: ptp4l[26461521.974]: master offset -9889887 s2 freq -8959502 path delay -18507260062 Jun 7 20:32:24 pts1 bash: ptp4l[26461523.022]: master offset -6908907 s2 freq -8945488 path delay -18501279790 Jun 7 20:32:25 pts1 bash: ptp4l[26461524.029]: master offset 2902698 s2 freq -1206556 path delay -18502141063 Jun 7 20:32:26 pts1 bash: ptp4l[26461525.037]: master offset 4116601 s2 freq +878157 path delay -18502141063 Jun 7 20:32:27 pts1 bash: ptp4l[26461526.039]: master offset 2382214 s2 freq +378750 path delay -18501279790 Jun 7 20:32:28 pts1 bash: ptp4l[26461527.037]: master offset 2007578 s2 freq +718778 path delay -18501279790 Jun 7 20:32:29 pts1 bash: ptp4l[26461528.035]: master offset 650213 s2 freq -36313 path delay -18500636755 Jun 7 20:32:30 pts1 bash: ptp4l[26461529.032]: master offset 51703 s2 freq -439759 path delay -18499997965 Jun 7 20:32:31 pts1 bash: ptp4l[26461530.031]: master offset 562234 s2 freq +86283 path delay -18500064491 Jun 7 20:32:32 pts1 bash: ptp4l[26461531.031]: master offset 480402 s2 freq +173121 path delay -18500064491 Jun 7 20:32:33 pts1 bash: ptp4l[26461532.031]: master offset 242923 s2 freq +79762 path delay -18499995842 Jun 7 20:32:34 pts1 bash: ptp4l[26461533.031]: master offset 167463 s2 freq +77179 path delay -18499995842 Jun 7 20:32:35 pts1 bash: ptp4l[26461534.030]: master offset 91445 s2 freq +51400 path delay -18499992721 Jun 7 20:32:36 pts1 bash: ptp4l[26461535.031]: master offset 44245 s2 freq +31634 path delay -18499992721 Jun 7 20:32:37 pts1 bash: ptp4l[26461536.030]: master offset 16384 s2 freq +17046 path delay -18499992239 Jun 7 20:32:38 pts1 bash: ptp4l[26461537.030]: master offset 5492 s2 freq +11069 path delay -18499994023 Jun 7 20:32:39 pts1 bash: ptp4l[26461538.030]: master offset -1260 s2 freq +5965 path delay -18499994023 Jun 7 20:32:40 pts1 bash: ptp4l[26461539.031]: master offset -3010 s2 freq +3837 path delay -18499994023 Jun 7 20:32:41 pts1 bash: ptp4l[26461540.030]: master offset -2552 s2 freq +3392 path delay -18499994023 Jun 7 20:32:42 pts1 bash: ptp4l[26461541.031]: master offset 700 s2 freq +5878 path delay -18499996347 Jun 7 20:32:43 pts1 bash: ptp4l[26461542.031]: master offset -160 s2 freq +5228 path delay -18499997100 Jun 7 20:32:44 pts1 bash: ptp4l[26461543.031]: master offset -1119 s2 freq +4221 path delay -18499997034 Jun 7 20:32:45 pts1 bash: ptp4l[26461544.030]: master offset -1173 s2 freq +3832 path delay -18499997034 Jun 7 20:32:46 pts1 bash: ptp4l[26461545.031]: master offset -596 s2 freq +4057 path delay -18499997034 Jun 7 20:32:47 pts1 bash: ptp4l[26461546.031]: master offset -115 s2 freq +4359 path delay -18499997340 Jun 7 20:32:48 pts1 bash: ptp4l[26461547.030]: master offset -162 s2 freq +4277 path delay -18499997340 Jun 7 20:32:49 pts1 bash: ptp4l[26461548.031]: master offset 83 s2 freq +4474 path delay -18499997470 Regards, Ankur
_______________________________________________ Linuxptp-users mailing list Linuxptp-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-users
